Senior Economic Analyst · Wizards of the Coast
Chris Pachulski
I'm Chris Pachulski. I turned a hobby into a career: co-founded MTGBAN, a Magic: The Gathering arbitrage engine that grew to 500+ subscribers, while spending 7+ years shipping analytics pipelines across five industries for Ad.Net, Mozilla, SPINS, and Providencia. Now I'm a Senior Economic Analyst at Wizards of the Coast, working on the game I built a business around.
Case studies
A curated list of the work I'd show you over coffee — analytics platforms, revenue models, and the data systems behind them.
Seven years of shipping
Analytics, BI, and data engineering across ad-tech, consumer, gaming, and CPG: Ad.Net, Mozilla, SPINS, Providencia, and Wizards of the Coast. Python, SQL, R, BigQuery, dbt, Airflow.
Field notes from the warehouse
42 posts on Python, R, SQL, BigQuery, Claude Code, and applied analytics.
- Math Correctness First: How Mortgage-Ops Forbids the LLM from Owning a Number
- The Emerald Exchange: One Household, One Bookmark, and the Specialists I Got to Stop Being
- A Wiki That Earns Its Keep: Five Article Types, a Stop Hook, and a YouTube Intake Pipeline
- Adding a Brain to a Fork: career-ops, card-ops, and the Compiled-Context Pattern
- At Home Media Server
- Four Terminals, Four Sounds: A Tab-Naming and Notification System for Parallel AI Sessions
- Building an Autonomous Research Loop: The Stack, The Rationale, and What I Borrowed From Karpathy and Feynman
- Memory Hygiene for Long-Running AI Work: Anti-Stickiness, Dreams, and Plan Clarity
- Automating Microsoft 365 in Python Without an Azure App Registration
- Streamlining Smartsheet with smartsheet_utils: A pandas-First Python Wrapper
- Production Python on Windows Task Scheduler: The Dual-Logging Pattern
- The IDs Don't Match: Cross-System Reconciliation Between Genesys and Salesforce
- Classifying Call-Center Agents with the Genesys API
- Pet Shop Monitoring with R
- Efficient DB Structure and Cost Management in BigQuery
- Streamlining SharePoint with sharepoint_utility
- Advanced SQL Techniques and Analytics
- Salesforce Data Management with Python and SOQL
- Card Kingdom’s API Analysis
- R & Python — Comprehensive Set Up
- Automation for Social Advertising Data Management with Python and SQL
- Win Rate Analysis and Optimization for Blind RTB Bidding with Python and SQL
- R vs Python — Google Sheets
- Bash Fun: Full On Sync & Setup For Mac
- Leveraging R for Advanced Client Revenue Analytics
- Inventory Acquisition with Google Sheets, Apps Script, SQL, and R
- Bash Fun: Download Folder File Organizer
- In-Depth Product-Level Analysis Using R for Advanced Market Insights
- Advanced Analytics and Revenue Optimization with R
- Advanced Advertising Analytics with R: Unlocking Data-Driven Insights
- Buying Support for Journey’s End Game Store Through R, SQL, and Communication
- R vs Python — Lazy vs Non-Lazy Evaluation
- Advanced Traffic Flow Analysis and Data Management with Python and SQL
- R vs Python — Package Management
- MTGBAN — Newspaper Updater: R, Google Cloud Platform, BigQuery
- Google Analytics and Gmail Automation with Python
- ClickHouse: An In-Depth Overview and Integration with Python and R
- R & Twitter — Automation
- How I Automated Booking a Baby Hospital Tour Using R and Docker
- Arbitrage in Magic: The Gathering — a Primer
- Racing Ahead: Data-Driven Insights into ZED RUN
- R — Trading Card Market Analytics and Automated Reporting
Let's go.
Hiring for analytics, BI, or data-engineering work? Need help designing a warehouse from scratch, or rescuing one that's on fire? I answer every genuine email at pachun95@gmail.com.